Fix crash while changing the argument of the Projection

diff --git a/src/SketchPlugin/SketchPlugin_Projection.cpp b/src/SketchPlugin/SketchPlugin_Projection.cpp
index 3d783a40850a9c902b5b2db01cfe41b1d25dfc27..1981738505a0213ab9350ba4701f6598f3f229ee 100644 (file)
--- a/src/SketchPlugin/SketchPlugin_Projection.cpp
+++ b/src/SketchPlugin/SketchPlugin_Projection.cpp
@@ -162,7 +162,8 @@ void SketchPlugin_Projection::computeProjection(const std::string& theID)
       std::dynamic_pointer_cast<ModelAPI_ResultConstruction>(lastResult());
   if (aResult && aResult->shape() && theID == EXTERNAL_FEATURE_ID()) {
     aResult->setShape(std::shared_ptr<GeomAPI_Edge>());
-    aProjection->selection(EXTERNAL_ID())->setValue(lastResult(), lastResult()->shape());
+    if (aProjection)
+      aProjection->selection(EXTERNAL_ID())->setValue(lastResult(), lastResult()->shape());
   }
 
   if (aVertex) {

diff --git a/src/SketchPlugin/Test/TestProjectionUpdate.py b/src/SketchPlugin/Test/TestProjectionUpdate.py
new file mode 100644 (file)
index 0000000..e3312d0
--- /dev/null
+++ b/src/SketchPlugin/Test/TestProjectionUpdate.py
@@ -0,0 +1,42 @@
+## Copyright (C) 2014-2017  CEA/DEN, EDF R&D
+##
+## This library is free software; you can redistribute it and/or
+## modify it under the terms of the GNU Lesser General Public
+## License as published by the Free Software Foundation; either
+## version 2.1 of the License, or (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+## Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public
+## License along with this library; if not, write to the Free Software
+## Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+##
+## See http:##www.salome-platform.org/ or
+## email : webmaster.salome@opencascade.com<mailto:webmaster.salome@opencascade.com>
+##
+
+"""
+    Check that there is no crash while changing the projecting feature
+"""
+
+from salome.shaper import model
+
+model.begin()
+partSet = model.moduleDocument()
+
+Sketch_1 = model.addSketch(partSet, model.defaultPlane("XOY"))
+SketchLine_1 = Sketch_1.addLine(20, -50, 70, 50)
+model.do()
+
+Sketch_2 = model.addSketch(partSet, model.defaultPlane("YOZ"))
+SketchProjection_1 = Sketch_2.addProjection(model.selection("VERTEX", "Sketch_1/Vertex-SketchLine_1s"), True)
+model.do()
+
+# change the feature projected (no crash expected)
+SketchProjection_1.setExternalFeature(model.selection("EDGE", "Sketch_1/Edge-SketchLine_1"))
+model.do()
+
+model.end()